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CR1000X internal battery reading 0 V


Rhuanito Nov 21, 2017 12:45 AM

Hi there, just opened the CR1000X logger box and ran a quick test using the template program measuring Batt, Ptemp and AirTemp using a T thermocouple, and noticed the internal battery is reading 0 V. Is that normal?


JDavis Nov 21, 2017 08:43 AM

Power the datalogger off, then back on. There should be a reading for the lithium battery then.

The CR1000X and CR6 are shipped with the lithium battery switched off to not draw from it while on the shelf or in shipping. It becomes enabled when you connect main power to the datalogger again. The battery is read on startup and occasionally by a background process. You must have gone through the quick test pretty fast.


DAM Nov 21, 2017 08:47 AM

If you are powering via USB, the battery voltage will show up as 0V.


Rhuanito Nov 21, 2017 08:57 AM

Gotcha ya. Powering on and off using USB haven~t changed the ZERO output. Will unplug the USB and use a 12-V power supply to see if it works. Thanks!


JDavis Nov 21, 2017 09:03 AM

You can have both USB and 12V connected.

When you said "internal battery", I immediately thought of the lithium battery. We chose to mark battery at 0V when running off USB as an indication that devices requiring 12V from the datalogger won't run.

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